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6
Chapter 2. Operation
Opening the Switch
Open the switch contacts with either of the following
methods:
• Depress the OFF button on the front of the switch.
• Energize the (optional) Shunt Trip or Shunt Trip with
Lockout accessory or de-energize the (optional)
Undervoltage Release accessory.
Additional Instructions for Motor-Operated
Switches
Charging the Mechanism Springs
The mechanism closing springs may also be charged by the
following method:
•
Short terminals 17 and 35 on the right terminal block,
with a push button or similar device, for a minimum of
five seconds.
If power is lost during the charge cycle, finish
•
charging the springs by cycling the charging handle
until the indicator shows CHARGED on a yellow
background. When the springs are fully charged, the
handle locks in the stored position.
Automatic Operation
Connect terminals 17 and 35 on the terminal block on the
right side of the switch with a jumper wire. The Motor
Operator will automatically recharge the switch closing
springs whenever the switch closes.
CAUTION: Do not wire switches for automatic close.
ATTENTION: Ne pas câbler les interrupteurs pour la
fermeture automatique.
Padlock Operation
The padlock prevents the switch from closing by holding the
trip latch in the tripped position. To install the padlock, use the
following procedure:
1. Trip the switch (press the OFF button).
2. Grasp the padlock tab (see Figure 6) and pull it out
until it is fully extended, as illustrated in Figure 8. Note
that if the switch contacts are closed, the padlock tab
will not extend.
3. Insert the padlock; the switch will not close.
As many as three
1
/
" to
4
one time.
3
/
" padlocks may be attached at
8
—
Figure 8. Side view of the switch, showing the padlock tab extended.
Periodic Operational Checks
Approximately once a year, verify that the switch is operating
correctly by opening and closing the mechanism.
Wiring Notes
Figure 9 illustrates the terminal block installed on the right
side of the switch. Table 4 lists the device connections to the
terminal block. Each terminal point will accept the following
connections:
• Bare stripped wire – one #12 AWG or two #14 AWG.
• Ring or spade connectors – two per terminal.
The terminal screws should be tightened to 7–9 in-lb torque.
The left terminal block is blank unless the optional Auxiliary
Switch Module accessory is ordered. See Table 16 for the
device connections to the Auxiliary Switch Module terminal
block.
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